The presence of infiltrating macrophages has been associated with poorer overall survival (Vakkila et al, 2006), and elevated levels of circulating proinflammatory factors (e.g., interleukin 6, IL‐6) correlate with tumor‐associated fever at advanced stages (Lissat et al, 2015), implying the recruitment of immunosuppressing myeloid dendritic cells, macrophages, and other inflammatory cells at the tumor site (preprint: Evdokimova et al, 2019). Here, IL6 is linked to neoplasm.